Window-screen.



H. D.. MILLS.

WINDOW SCREEN. APPLICATIONHLED NOV-25, 1916 LQQ 1,56%, Patented Apr. 3,1917. z0 H /0 l/ M i .26

INVENTOR WITNESSES W ATTORNEY m: mmms FEYERS co. imam-Limo" wasmucruui nc.

- M ii 4 HENRY :o. MILLs, or mwoon, NEW YORK.

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Applieation filed November 25, 1916. serial No. 133,414.

To all whom it may concem:

Be it known that I, HENRY D. MILLs, a citizen of the United States,residing at Inwood, in the county of Nassau and State of New York, haveinvented certain new and useful Improvements in Window-Screens, of whichthe following is a specification.

This invention has relation to window screens, and has for an object toprovide a screen of relatively movable sections, whereby the screenmaybe fitted to window openings of various widths.

Another object of the invention is to provide an adjustable windowscreen of the character above set forth, and embodying a single strip ofwire fabric or screening material, with means for taking up or payingout the strip as the screen sections are adjustedtoward or away fromeach other.

A still further object of the invention is to provide a window screenhaving relatively adjustable frame sections, formed ofpressed metal, andembodying means whereby the wire fabric may be inclosed within the framesections at the marginal edges of the fabric, and a rib on said framesections whereby said sections may be guided and maintained in alinementduring relative adjustment thereof.

In addition to the foregoing, my inven tion comprehends improvements inthe details of construction and arrangement of the correlated parts tobe hereinafter more fully described and particularly set forth in theappended claims.

In the accompanying drawings in which similar and corresponding partsare designated by the same characters of reference throughout theseveral views in which they appear; i I

Figure 1, is a view in front elevation of a window screen constructedafter the manner of my invention.-

Fig. 2, is a detail fragmentary view of one corner of the screen.

Fig 3, is a detail view illustrating the manner in which the springroller is engaged and held, and

Fig. 4, is a transverse sectional view taken on the line 44 of Fig. 1.

With reference to the drawings, 10 and 11 indicate respectively the leftand right hand sections of a window screen connected Specification ofLetters Patent.

' Patented Apr. a, 1917.

for relative movement. The sections are in each instance rectangularwith one side left open, and the section 10, comprises an upper andlower horizontal frame member 12 and 13 respectively, and a verticalside member 14.

U The frame section 10 is formed of pressed metal, and in cross sectionthe members thereof are formed of spaced sides 14 formed by doubling themetal at 15, with the free edges which constitute the inner edges of theframe section, bent outwardly, as at 16. The portions 16 which are bentoutwardly, however, extend to only a short distance from the member 14of the frame along the inner edges of the frame members 12 and 13, andare adapted to form a stop for limiting the movement of the framesection 11 in a manner which will be presently obvious. One

of the portions 14 of the members 12, 13 and 14, of the frame section10, is pressed outwardly to form a rib 17; having spaced inner sides,the ribs on the members 12 and 13 being provided adjacent their point ofconnection with the rib of the frame member 14 with a circular openingin one instance, and a rectangular slot 18 in the other instance. Therectangular opening is however preferably provided in the ridge formedupon the lower frame members 13, and a spring roller preferablyconstructed of sheet metal, indicated at 19, is provided with a circulartrunnion 20 adapted to enter the aforesaid circular opening in the ribof the frame member 12, and a rectangular trunnion 21 which enters theaforesaid rectangular slot 18 in the lower rib. The keeper 22 is pivotedas at 23 to the rib upon the lower frame member 13, adjacent the journalof the spring roller, and saidkeepers are provided with a rectangularopening 24 in which to receive the aforesaid rectangular trunnions 20and 21 of the spring roller, whereby the said trunnion is effectivelysecured and held against rotation, said trunnion being thereby retainedwithin the aforesaid rectangular opening 18. The keeper 22 is formedupon its upper edge with an inclined portion 25 the object of which willbe presently noted.

' The roller 19 as mentioned above is hollow, and provided with acentral longitudinally extending rod 26 connected to the rectangulartrunnion 21 and a coil spring 27 is encircled about said rod andconnected at one end to the rod and the opposite end to the interior ofthe roller.

lowered vinto operative position. It will be whereby when the pawl is inthe position i noted by reference to Fig. 3, that when the pawl is movedto bring its connecting portion into engagement with the rib upon whichit is'pivoted, through the medium of a pivot pin 32 with the rib andears 30, the free end of the pawl is adapted to engage by its connectingportion between adjacent teeth of the aforesaid ratchet wheel 28 therebyretaining the wheel against rotation. The pawl is also formed with aninclined portion '33 which is adapted to engage the inclined portion. 25of the aforesaid keeper just referred to the keeper is retained in aposition to secure the rectangular trunnion of the spring roller inplace.

The screen section 11 is similarly formed of sheet metal, with the upperand lower members 3e and 35 respectively thereof, as Wellas the verticalconnecting member 36 farmed. of sheet metal of adouble thicknessindicated at 37, and with one of said thicknesses formed with a laterallongitudinally extending rib 38. The inner marginal portions of themembers 34, 35 and 36 of the frame section 11 are bent outward as at 39,andwhen the said sections 10 and 11 are brought into relation, themembers 34: and 35 of the section 11 are adapted to enter the spacebetween the spaced portion 14 of the members 12 and 13 of the section10, whereby relative sliding or telescopic movement of the frame membersis permitted. It is also to be noted'that the ribs 38 of said members34: and 35 are adapted to enter the ribs 17 of the members 12 and 13,and the outturned bars 39 of the screen section 11 receive the inneredges of the members 12 and 1 3 of the screen section 10, thus providingmutual guiding members to guide the frame sections 10- and 1 1duringrelative adjustment thereof. It is also to be noted at this timethat the similar out-turned portions on the inner edges of the framemembers 12 and 1 3, form stop, to limit movement of the frame section 11by engagement with the out-turned margin 39 of said frame section 11, asclearly set forth in F ig. 1. The screen material is in the nature of astrip of wire fabric indicated at 4:0, with one end secured between themembers of the element 36 of the frame section ll, with the marginalportions of said screen section lO disposed within the space between themetallic strips comprising the members 34 and 35, and also the members12 and 13, with the opposite end of the fabric wrapped about the springroller 19 and secured thereto as at 41.

To adjust the screen to window openings of difierent widths, it is butnecessary to re lease the pawl 29 from engagement with the ratchetwheel- 28, and then move the screen sections relatively, permitting thewire fabric to play out when the screen section widens and to take upthe material as the sections are moved toward each other to shorten thescreen.

While I have illustrated and described my invention with some degree ofparticularity I realize that in practice various alterations thereovermay be made, and I therefore, rcserve the right and privilege ofchanging the form of the details of construction or otherwise alteringthe arrangement of parts without departing from the spirit of theinvention or the scope of the appended claims.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is 1. A window screen including relativelymovable frame sections, said frame sections being formed of sheet metalwith the members thereof of double thickness having one face thereofpressed outward to form a rib, the ribs of the frame section beinginterengaged to form guides when the frame sections are moved relativelyto adjust the screen, a spring roller mounted upon one section, a screensection mounted within the frame, wrapped about the roller at one end,and having its opposite end secured to the opposite frame section,whereby to automatically take up or pay out the screen material as theframe sections are moved toward or away from each other, and releasablemeans for retaining the roller against movement subsequent to adjustmentof th screen sections.

2. A window screen, including relatively movable frame sections, opposedribs formed on one section having alined openings, one of said openingsbeing circular and the other rectangular extending to the edge of therib, a spring roller having a cylindrical trunnion at one end adapted toenter said circular opening, and a rectangular trunnion at the oppositeend adapted to enter laterally a rectangular opening, a ratchet wheelsecured to the spring roller, adjacent the end having the rectangulartrunnion, a keeper pivotally secured to one rib for engaging the rectangular trunnion, to retain the same in place,

and a pawl formed of spaced connected engaging the keeper to retain thesame members adapted to straddle the rib to enagainst displacement.

gage opposite sides thereof andto be pivot- In testimony whereof I afiixmy signature ally connected thereto, the free end of the in presence oftWo Witnesses.

, pawl having a lateral extension to form a HENRY D. MILLS.

finger grip, and for engaging between the Witnesses: teeth of theratchet to retain the same LILLIAN THOMPSON, against rotation, said paWlin this posltion WM. F. CHAVE.

Copiea of this patent may be obtained for five cents each, by addressingthe Commissioner of Patentm, Washington, D. 0.

